Starting background file system checks in 60 seconds.

Thu Mar  3 07:20:30 UTC 2022

FreeBSD/amd64 (ci-freebsd-main-5.c.syzkaller.internal) (ttyu0)

Warning: Permanently added '10.128.1.77' (ECDSA) to the list of known hosts.
2022/03/03 07:21:22 parsed 1 programs
2022/03/03 07:21:22 executed programs: 0
login: [fib_algo] inet.0 (bsearch4#24) rebuild_fd_flm: switching algo to radix4_lockless
witness_lock_list_get: witness exhausted
maxproc limit exceeded by uid 0 (pid 7000); see tuning(7) and login.conf(5)
maxproc limit exceeded by uid 0 (pid 7354); see tuning(7) and login.conf(5)
maxproc limit exceeded by uid 0 (pid 6914); see tuning(7) and login.conf(5)
panic: pmap_san_enter_alloc_4k: no memory to grow shadow map
cpuid = 1
time = 1646292092
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0xc7/frame 0xfffffe0094aad970
kdb_backtrace() at kdb_backtrace+0xd3/frame 0xfffffe0094aadad0
vpanic() at vpanic+0x2b8/frame 0xfffffe0094aadbb0
panic() at panic+0xb5/frame 0xfffffe0094aadc70
pmap_san_enter() at pmap_san_enter+0x56c/frame 0xfffffe0094aadcb0
kasan_shadow_map() at kasan_shadow_map+0x98/frame 0xfffffe0094aadcd0
pmap_growkernel() at pmap_growkernel+0xdf/frame 0xfffffe0094aadd10
vm_map_insert() at vm_map_insert+0x6bc/frame 0xfffffe0094aade50
vm_map_find() at vm_map_find+0x92f/frame 0xfffffe0094aadf30
kva_import() at kva_import+0xd4/frame 0xfffffe0094aae010
vmem_try_fetch() at vmem_try_fetch+0x21f/frame 0xfffffe0094aae100
vmem_xalloc() at vmem_xalloc+0x528/frame 0xfffffe0094aae1c0
kva_import_domain() at kva_import_domain+0x5f/frame 0xfffffe0094aae210
vmem_try_fetch() at vmem_try_fetch+0x21f/frame 0xfffffe0094aae2f0
vmem_xalloc() at vmem_xalloc+0x528/frame 0xfffffe0094aae3b0
vmem_alloc() at vmem_alloc+0x106/frame 0xfffffe0094aae410
kmem_malloc_domainset() at kmem_malloc_domainset+0x175/frame 0xfffffe0094aae530
keg_alloc_slab() at keg_alloc_slab+0x1d3/frame 0xfffffe0094aae650
zone_import() at zone_import+0x2de/frame 0xfffffe0094aae820
cache_alloc() at cache_alloc+0x879/frame 0xfffffe0094aae8e0
cache_alloc_retry() at cache_alloc_retry+0x37/frame 0xfffffe0094aae950
fdcopy() at fdcopy+0x8c/frame 0xfffffe0094aaea50
do_fork() at do_fork+0x95d/frame 0xfffffe0094aaeb30
fork1() at fork1+0xb3a/frame 0xfffffe0094aaec30
sys_fork() at sys_fork+0xe3/frame 0xfffffe0094aaed30
amd64_syscall() at amd64_syscall+0x40c/frame 0xfffffe0094aaef30
fast_syscall_common() at fast_syscall_common+0xf8/frame 0xfffffe0094aaef30
--- syscall (198, FreeBSD ELF64, nosys), rip = 0x28a42a, rsp = 0x82a5f1f08, rbp = 0x82a5f1f70 ---
KDB: enter: panic
[ thread pid 1368 tid 100678 ]
Stopped at      kdb_enter+0x6b: movq    $0,0x2705dda(%rip)
db> 
db> set $lines = 0
db> set $maxwidth = 0
db> show registers
cs                        0x20
ds                        0x3b
es                        0x3b
fs                        0x13
gs                        0x1b
ss                        0x28
rax                       0x12
rcx         0x1f0b9df0968b5a9a
rdx         0xdffff7c000000000
rbx                          0
rsp         0xfffffe0094aadab0
rbp         0xfffffe0094aadad0
rsi                        0x1
rdi                          0
r8                         0x3
r9                  0xffffffff
r10                          0
r11         0xfffffe009d3b5e10
r12         0xfffffe0094d50560
r13         0xfffffe0094aadb01
r14         0xffffffff82ba9ce0  .str.26
r15         0xffffffff82ba9ce0  .str.26
rip         0xffffffff8176b73b  kdb_enter+0x6b
rflags                    0x46
kdb_enter+0x6b: movq    $0,0x2705dda(%rip)
db> show proc
Process 1368 (syz-executor.3) at 0xfffffe0094d13a90:
 state: NORMAL
 uid: 0  gids: 0, 0, 5
 parent: pid 867 at 0xfffffe0092f94548
 ABI: FreeBSD ELF64
 flag: 0x10000000  flag2: 0
 arguments: /root/syz-executor.3 exec
 reaper: 0xfffffe0053dda000 reapsubtree: 1
 sigparent: 20
 vmspace: 0xfffffe0094da9000
   (map 0xfffffe0094da9000)
   (map.pmap 0xfffffe0094da90c0)
   (pmap 0xfffffe0094da9128)
 threads: 1
100678                   Run     CPU 1                       syz-executor.3
db>